Click on a day for an hourly weather forecast
The temperatures in Sint Maarten in September are comfortable with low of 15°C and and high up to 17°C.
You can expect about 3 to 8 days of rain in Sint Maarten during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sint Maarten in September 2025.
If you’re planning to visit Sint Maarten in the near future, we highly recommend that you review the 14 day weather forecast for Sint Maarten before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 4° | 8 | 19 | 4 | 74 mm | Awful | Sint Maarten in January |
| February | 6° / 4° | 8 | 17 | 3 | 58 mm | Awful | Sint Maarten in February |
| March | 7° / 5° | 5 | 25 | 1 | 42 mm | Ok | Sint Maarten in March |
| April | 9° / 7° | 3 | 27 | 0 | 35 mm | Ok | Sint Maarten in April |
| May | 12° / 10° | 4 | 27 | 0 | 55 mm | Ok | Sint Maarten in May |
| June | 15° / 13° | 5 | 26 | 0 | 66 mm | Good | Sint Maarten in June |
| July | 18° / 16° | 5 | 26 | 0 | 86 mm | Good | Sint Maarten in July |
| August | 19° / 17° | 6 | 25 | 0 | 113 mm | Good | Sint Maarten in August |
| September | 17° / 15° | 5 | 25 | 0 | 97 mm | Good | Sint Maarten in September |
| October | 14° / 12° | 7 | 24 | 0 | 107 mm | Ok | Sint Maarten in October |
| November | 11° / 9° | 7 | 23 | 0 | 105 mm | Bad | Sint Maarten in November |
| December | 8° / 6° | 9 | 21 | 1 | 100 mm | Bad | Sint Maarten in December |